Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
trinh cua » trinh quan, trinh luan, trinh chat
dang cong » dung cong
tinh cua » sinh cua, tinh chat, tranh cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh ((((trinh cua) or (tinh cua))) or (trinh luat)) dang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((((trinh cua) OR (tinh cua))) OR (trinh luat)) dang cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((((trinh cua) or (tinh cua))) or (trinh luat)) dang cong tac toan cao*.